198 2008-08-08 16:49 3.1.0 gmetad segfaults when aggregating XML from another 3.1.0 gmetad 2008-08-15 06:01:07 1 1 1 Unclassified Ganglia Monitoring System gmetad 3.1.x PC All RESOLVED FIXED http://www.mail-archive.com/ganglia-developers@lists.sourceforge.net/msg04584.html P2 critical --- 1 bernard@vanhpc.org bnicholes@novell.com carenas@sajinet.com.pe bernard@vanhpc.org 2008-08-08 16:49:16 When gmetad has a data_source which points to another gmetad's non-interactive port (8651 by default), it will segfault. gmetad debug output: [Test] is a 2.5 or later data stream hash_create size = 50 hash->size is 53 Found a <GRID>, depth is now 1 Segmentation fault strace output: 0xfee2b0b4) = ? ERESTART_RESTARTBLOCK (To be restarted) +++ killed by SIGSEGV +++ gdb output: #0 0x000000300160af10 in hash_lookup (key=0x44603a90, hash=0x0) at hash.c:304 #1 0x000000000040590b in startElement_EXTRA_ELEMENT (data=0x44604c50, el=<value optimized out>, attr=0x621980) at process_xml.c:731 #2 0x0000000000405eac in start (data=0x44604c50, el=0x61f9dc "EXTRA_ELEMENT", attr=0x621980) at process_xml.c:1010 #3 0x0000003005209e49 in strcmp () from /lib64/libexpat.so.1 #4 0x000000300520acf4 in strcmp () from /lib64/libexpat.so.1 #5 0x000000300520be19 in strcmp () from /lib64/libexpat.so.1 #6 0x000000300520ce2b in strcmp () from /lib64/libexpat.so.1 #7 0x0000003005203fb1 in XML_ParseBuffer () from /lib64/libexpat.so.1 #8 0x0000000000405150 in process_xml (d=0x60fb10, buf=0x610dd0 "<?xml version=\"1.0\" encoding=\"ISO-8859-1\" standalone=\"yes\"?>\n<!DOCTYPE GANGLIA_XML [\n <!ELEMENT GANGLIA_XML (GRID|CLUSTER|HOST)*>\n <!ATTLIST GANGLIA_XML VERSION CDATA #REQUIRED>\n <!ATTLIST"...) at process_xml.c:1186 #9 0x0000000000403f2d in data_thread (arg=<value optimized out>) at data_thread.c:160 #10 0x0000003001e06407 in start_thread () from /lib64/libpthread.so.0 #11 0x00000030012d4b0d in clone () from /lib64/libc.so.6 carenas@sajinet.com.pe 2008-08-08 17:13:25 this is partially a duplicated of BUG188, who already has the patch uploaded. will update it here too for completeness and to track it getting merged into 3.1.1 not to waste this bug then. carenas@sajinet.com.pe 2008-08-08 17:14:37 Created an attachment (id=152) proposed backport patch for 3.1 also uploaded in BUG188 carenas@sajinet.com.pe 2008-08-15 06:01:07 Commited revision 1657 for 3.1 152 2008-08-08 17:14 proposed backport patch for 3.1 ganglia-3.1.0-gmetad-hierarchical.patch text/plain 481 SW5kZXg6IGdtZXRhZC9wcm9jZXNzX3htbC5jCj09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT0KLS0tIGdtZXRhZC9wcm9jZXNz X3htbC5jCShyZXZpc2lvbiAxNjM0KQorKysgZ21ldGFkL3Byb2Nlc3NfeG1sLmMJKHdvcmtpbmcg Y29weSkKQEAgLTcyNCw3ICs3MjQsMTEgQEAKICAgICAKICAgICBpZiAoIXhtbGRhdGEtPmhvc3Rf YWxpdmUpIAogICAgICAgICByZXR1cm4gMDsKLSAgICAKKworICAgIC8qIE9ubHkga2VlcCBleHRy YSBlbGVtZW50IGRldGFpbHMgaWYgd2UgYXJlIHRoZSBhdXRob3JpdHkgb24gdGhpcyBjbHVzdGVy LiAqLworICAgIGlmICghYXV0aG9yaXR5X21vZGUoeG1sZGF0YSkpCisgICAgICAgcmV0dXJuIDA7 CisKICAgICBoYXNoa2V5LmRhdGEgPSAodm9pZCopIG5hbWU7CiAgICAgaGFzaGtleS5zaXplID0g IHN0cmxlbihuYW1lKSArIDE7CiAgICAgCg==